vjust and hjust do not work with axis_text

[mark-yong-fs]

# Test case to demonstrate alignment issue with axis_text_x
# Create a sample DataFrame for testing purposes
data = {
    'category': ['This is a label', 'Label B', 'C', 'D', 'This is a label E'],
    'value': [5, 4, 3, 2, 1]
}
train = pd.DataFrame(data)

# Create bar plot
for i in [0, 0.5, 1]:
    plot = (
        ggplot(train, aes(x='category', y='value'))
        + geom_bar(stat='identity')
        + ggtitle(f'Sample plot: vjust & hjust = {i}')
        + theme(axis_text_x=element_text(angle=45, hjust=i, vjust=i))
    )
    plot.show()

All iterations show up exactly the same

[mark-yong-fs]

Related to #1227